Prep first
Before you start
- Check the care label or the maker's care guide for the fiber and the cleaners it approves.
- Find out whether the carpet is wool or a wool blend, since wool needs a gentler mix.
- Move furniture out of the area so the carpet can be cleaned edge to edge.
- Choose a hidden spot, such as inside a closet, to test the solution before using it on the open carpet.
Carpet holds dirt deep in the pile and the backing, so surface cleaning rarely gets it fully clean. Too much water can soak through to the backing and leave rings or wicking stains, and the wrong cleaner can damage the fibers and backing. Before you start, check whether the carpet is wool or synthetic, since wool needs a gentler mix.
A carpet cleaning machine used with a lukewarm, lightly dosed soap mix is the most reliable way to deep clean carpet at home. Vacuum first, work a little at a time, and keep the solution light. Let the carpet dry fully before you put furniture back.
Before you start
What carpet can take
Use with care6
- Water
- Hot water
- Oxygen bleach
- Solvents (alcohol, spot removers)
- Acids (vinegar, lemon)
- Heat (dryer, iron, hot air)
Avoid3
- Soaking
- Chlorine bleach
- Scrubbing and abrasives
7 items
What you'll need
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- Vacuum with a rotating brush or beater barIt removes loose dirt and lifts the fibers before the deep clean.
- Carpet extractor, rented or ownedIt applies the solution and pulls the soil and water back out. (opens Amazon)
- Liquid dish soapIt is the detergent in the solution, and it works at a light mix. (opens Amazon)
- Measuring spoons and a measuring cupThe mix has to be exact, because a stronger mix leaves residue.
- White cloths or white paper towelsThey let you blot without transferring color onto the carpet. (opens Amazon)
- Clean towelsThey help blot the carpet as dry as possible after the rinse.
- Floor dryerIt can speed up drying once the carpet is extracted.
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6 steps
Step by step
Step 1 of 6
Vacuum the whole carpet thoroughly
Move the furniture out of the area and vacuum slowly, without skipping corners or crevices. Use a vacuum with a rotating brush or beater bar, adjusted to the pile height. Vacuuming first lifts the fibers and removes loose dirt, so the deep clean needs fewer passes.
Tip. Replace or empty the vacuum bag when it is one-half to two-thirds full.
Step 2 of 6
Mix the solution and test it
Mix 1/4 teaspoon of liquid dish soap per cup of lukewarm water, and pour the mix into the machine's tank. Test it on a small hidden spot, such as inside a closet, and check for any color change before you clean the open carpet.
Tip. Measure with spoons, since more soap is not better.
Careful. A stronger mix leaves residue that makes the carpet get dirty again quickly.
Step 3 of 6
Pre-treat heavy spots, then make passes
Pre-treat heavily soiled areas first by dabbing a little of the mix onto them with a white cloth, working from the edges toward the center. Pick a starting point, hold the solution button to make a cleaning pass, and make two wet passes followed by two dry passes without the solution. Overlap each pass by a few inches until the whole area is done, and keep the carpet from getting soaked.
Tip. Keep the machine moving at an even pace so each area gets the same amount of solution.
Careful. Never scrub or use a brush on a spot; it can damage the fibers, spread the spot and distort the pile.
Step 4 of 6
Rinse with plain water
Switch to plain water and make a rinse pass over the cleaned areas, using small amounts. Blot the spots with clear water to lift any product that is left behind, and rinse well.
Tip. Stick to small amounts, since carpet that stays wet takes longer to dry.
Step 5 of 6
Extract and dry the carpet fully
Pull as much water out as the machine can manage, then blot the carpet with towels to dry it as much as possible. Floor dryers can speed up drying, and the dry passes from earlier help as well.
Step 6 of 6
Clean the machine and reset the room
Wipe down the machine and clean its tank once you are finished. Then look over the carpet for any remaining marks as it dries.
Careful. Put furniture back only when the carpet is fully dry.
What makes the job easier
Best products for cleaning carpet
Choose a carpet cleaner made for your carpet's fiber and approved by the carpet maker, and check the care label before you buy. Skip any product that lists bleach or strong alkali.
Rug Doctor Mighty Pro X3 Carpet Cleaner
BISSELL Little Green Portable Carpet & Upholstery Cleaner
Zep Advanced Oxy Carpet & Upholstery Stain Remover
How we picked these: each product is made for cleaning carpet, its maker doesn't warn against using it on carpet, and its directions fit the steps above.
Finished? How does it look?
Nice work. Let it dry completely before you use it again.
How to tell it's really done →Spots that survive a deep clean are usually stains, and each stain has its own method.
Find the guide for your stain →Heavy grime or a lingering smell usually needs a second round once it's fully dry.
See what to do for what you're seeing →When to call a professional →How to tell it's done
The carpet is clean when the color looks even and the pile feels soft rather than sticky, with no sign of leftover product. It is dry when a white towel pressed onto the pile comes away dry. If it still feels damp or sticky, blot it again and let it dry fully before you return furniture.
Treat stains with their own method
Got a stain on it?
A deep clean lifts everyday dirt, but most stains need their own method. Pick yours:
What changes for yours
Adjust for your carpet
Shag and fuzzy carpet
Vacuum shag with suction only, and test a beater bar in a hidden spot first if you want to try it, since it can fuzz the carpet.
For jute or another natural fiber you can't identify, check the maker's care guide before any water touches it. If you can't find any guidance, use only the light mix and keep the carpet as dry as you can.
Wool carpet
Wool needs a gentler approach, so use the same light mix in lukewarm water, with a soap that has no bleach or strong alkali. Pretest it in a hidden place for color loss before you use it on the open carpet.
Apply the mix to a cloth rather than straight onto the spot, and don't over-saturate the wool. If you can't tell whether the carpet is wool, use this gentler approach anyway.
Area rugs
Check the care label before cleaning an area rug, since small and large rugs need different handling. Small rugs that are machine washable can be washed in warm water at 90 to 105 degrees with mild detergent, then tumble dried on the lowest heat.
Large rugs should be shaken outside and beaten over a clothesline before vacuuming indoors. Rugs with fringe should be vacuumed from the center toward the fringe with gentle suction, and Oriental, Turkish and Persian rugs call for the maker's specifications or a professional.
Between deep cleans
How often to clean it
Vacuum the whole carpet at least once a week, and more often with heavy traffic, so dirt doesn't embed in the pile. Vacuum the traffic lanes daily and use the edge tool along baseboards and corners. Move furniture every so often to help prevent matting.
Have the carpet professionally deep cleaned every 12 to 18 months, or more often with pets or heavy traffic. Between cleans, use mats and remove shoes at the door to stop dirt from getting in, and blot any spill right away.
Vinegar, baking soda, peroxide and more
Do home remedies work for cleaning carpet?
Many household remedies get recommended for carpet, but only a few hold up against carpet guidance. Keep bleach, soaking and scrubbing away from carpet, and use only the mild dish soap in the deep clean.
Works1Helps5Skip1Avoid2
What makes it worse
Mistakes to avoid
Don't use chlorine bleach as a cleaner
Chlorine bleach can delaminate the carpet backing and discolor or dissolve the fibers. Keep it away from the carpet, even on a stain that seems stubborn.
Don't use laundry or dishwasher detergent
Laundry detergent isn't meant for carpet. Automatic dishwasher detergents contain bleaching agents that destroy dyes and some fibers, so stick with the light dish soap mix.
Don't soak the carpet
Too much solution can soak through to the backing and bring stains back up through wicking. Use small amounts and blot frequently instead.
Don't use a cleaner with a pH of 10 or higher
Check the pH on the label before you buy, since carpet shouldn't get a cleaner this strong. The light dish soap mix is the safer choice.
Don't pour solvent straight onto the carpet
Solvents can dissolve carpet materials and destroy the backing. Put a few drops on a white cloth and test it in a hidden area first.
Troubleshooting
If it still isn't clean
Pick what you're seeing:
The carpet feels sticky after drying
Leftover soap is the likely cause, since unrinsed residue makes carpet soil again quickly. Rinse with small amounts of plain water and blot as dry as you can. Next time, mix the solution no stronger than the solution step calls for.
A stain comes back after the carpet dries
This is wicking, where moisture pulls the stain back up through the carpet. Repeat the removal and blot away all the moisture before you let it dry.
A patch has changed color
If a cleaner has changed the color, stop using it on the carpet. Call a professional carpet cleaner, since they can judge the damage.
When to call a professional
Call a professional if a pretested cleaner changes the carpet's color, an oily stain stays behind, or the carpet has extensive water damage that needs drying from the front and back. Pet stains and odors that persist, and any spot-removal question you are unsure about, are also good reasons to call one.
Questions
Can I clean carpet without a machine?
You can spot clean without a machine, but it won't give you a true deep clean. Blot the area with the same light mix on a white cloth, working from the edges toward the center. A small hand extractor suits pet accidents but doesn't replace a deep clean.
What should I do after a urine accident?
Extract the spot with a wet vacuum, then rinse it with cool water rather than anything hot. If the odor lingers after that, a professional carpet cleaner is the next step.
Is steam cleaning the same as hot water extraction?
Professionals call steam cleaning hot water extraction, so the two terms describe the same deep clean. For home use, keep the solution lukewarm and follow the steps above. Professional extraction is usually scheduled every 6 to 18 months depending on traffic.
Does a floor dryer really help?
Yes, floor dryers can speed up drying. Blot as much water out as you can first, so the dryer has less to remove.
Do I still need a deep clean if I vacuum every week?
Yes, because vacuuming keeps soil from settling deep into the pile, but it won't remove what is already embedded. A deep clean with a carpet cleaner lifts that soil out and rinses it away.
How can I tell if my carpet is wool?
Check the manufacturer's label or care guide first, since that is the reliable source for the fiber. If you still can't tell, use the wool approach, which is the gentler one.
Methods, care labels and related guides
Good to know
Odor guides
Still smells?
More cleaning guides
How we know this
Every method, amount and warning here comes from university extension services, industry bodies and product makers. We read them, check every step for unsafe combinations and changed amounts, and write it up so you can follow it.